Polar-fluoropolymer blends with tailored nanostructures for high energy density low loss capacitor applications

Shan Wu, Minren Lin, S. G. Lu, Lei Zhu, Qiming Zhang

    Research output: Contribution to journalArticle

    50 Scopus citations

    Abstract

    A polar-fluoropolymer blend consisting of a high energy density poly(vinylidene fluoride-chlorotrifluoroethylene) (P(VDF-CTFE)) and a low dielectric loss poly(ethylene-chlorotrifluoroethylene) (ECTFE) was developed. Both the blend and crosslinked blend films exhibit a dielectric constant of 7 and low loss (∼1%), as expected from the classical composite theory. Moreover, introducing crosslinking in the blends can lead to a marked reduction of losses in blend films at high fields while maintaining a high energy density. At 250 MV/m, a loss of 3% can be achieved in the crosslinked blend compared with 7% loss in pure blend, which is already much below that of neat P(VDF-CTFE) (∼35%).

    Original languageEnglish (US)
    Article number132901
    JournalApplied Physics Letters
    Volume99
    Issue number13
    DOIs
    StatePublished - Sep 26 2011

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)

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